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Contents

README

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FDD8451-HXY

HXY MOSFET · MOSFETs · TO-252-2L

FDD8451-HXY from HXY MOSFET, in a TO-252-2L. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 G input Gate terminal; gate-source voltage is rated ±20 V, and the gate threshold is 1.0 V to 2.5 V at VDS=VGS, ID=250μA.
2 D passive Drain terminal; drain-source voltage is rated 40 V, with continuous drain current 30 A at TC=25℃ (VGS=10V) and pulsed drain current 40 A.
3 S passive Source terminal; body diode maximum continuous forward current is 30 A and pulsed forward current is 40 A, with forward voltage VSD up to 1.2 V at IS=8A.

Key specifications

Parameter Value
Manufacturer HXY MOSFET
Package TO-252-2L
Category Transistors/Thyristors
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Drain-Source Voltage VDS 40 V 1
Gate-Source Voltage VGS -20 20 V 1
Continuous Drain Current ID 30 A TC=25℃, VGS @ 10V 1
Continuous Drain Current ID 15 A TC=100℃, VGS @ 10V 1
Pulsed Drain Current IDM 40 A 1
Single Pulse Avalanche Energy EAS 17.1 mJ 1
Avalanche Current IAS 10 A 1
Total Power Dissipation PD 4 W TC=25℃ 1
Storage Temperature Range TSTG -55 150 ℃ 1
Operating Junction Temperature Range TJ -55 150 ℃ 1
Thermal Resistance Junction-ambient RθJA 62 ℃/W Steady State 1
Thermal Resistance Junction-Case RθJC 2.8 ℃/W 1
Drain-Source Breakdown Voltage V(BR)DSS 40 V VGS=0V, ID=250μA 2
Zero Gate Voltage Drain Current IDSS 1 μA VDS=40V, VGS=0V 2
Gate to Body Leakage Current IGSS -100 100 nA VDS=0V, VGS=±20V 2
Gate Threshold Voltage VGS(th) 1 1.5 2.5 V VDS=VGS, ID=250μA 2
Static Drain-Source on-Resistance RDS(on) 18 22 mΩ VGS=10V, ID=8A 2
Static Drain-Source on-Resistance RDS(on) 25 35 mΩ VGS=4.5V, ID=5A 2
Maximum Continuous Drain to Source Diode Forward Current IS 30 A 2
Maximum Pulsed Drain to Source Diode Forward Current ISM 40 A 2
Drain to Source Diode Forward Voltage VSD 1.2 V VGS=0V, IS= 8A 2

CAD (KiCad official)

  • Symbol: FDD8451-HXY
  • Footprint: Package_TO_SOT_SMD:TO-252-2
  • 3D model: TO-252-2L (KiCad packages3D, STEP)
  • 3D model files: fdd8451-hxy-etched.step / fdd8451-hxy-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); fdd8451-hxy.step / fdd8451-hxy.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: HXY MOSFET datasheet (6 pp, sha256 0aeb603e7667aecc, retrieved 2026-10-30, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF